Aquatic Ecosystems Worksheet
Explore the fascinating world of aquatic ecosystems with this Grade 6 science worksheet, covering freshwater and saltwater environments, their inhabitants, and key characteristics.
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Aquatic Ecosystems Exploration
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Read each question carefully and answer to the best of your ability. Good luck!
1. Which of the following is NOT an example of an aquatic ecosystem?
Ocean
River
Desert
Lake
2. What is the primary characteristic that distinguishes freshwater ecosystems from marine ecosystems?
Temperature
Salinity
Depth
Currents
3. Look at the image below. What type of aquatic ecosystem is depicted?
Marine
Estuary
Freshwater (Pond)
Brackish
4. Aquatic ecosystems are broadly divided into two main types: and .
5. The amount of salt dissolved in water is called .
6. An area where freshwater meets saltwater, like a river flowing into the ocean, is called an .
7. All aquatic animals can survive in both freshwater and saltwater.
True
False
8. The deepest parts of the ocean receive a lot of sunlight.
True
False
9. Name two animals that live in a freshwater ecosystem and two animals that live in a marine ecosystem.
10. Explain why estuaries are important ecosystems for many species.